| ITF M25 Nussloch | 2025/01/22 10:00 | Szymon Kielan v Millen Hurrion | 3-6,6-7 |
| ITF M25 Nussloch | 2025/01/20 15:14 | Niels Lootsma v Szymon Kielan | 5-7,3-6 |
| ITF M25 Hazebrouck | 2025/01/07 13:00 | Dan Added v Szymon Kielan | 6-4,6-1 |
| ITF M25 Hazebrouck | 2025/01/06 10:30 | Yanis Ghazouani Durand v Szymon Kielan | 6-1,3-6,0-1 |
| ITF M25 Hazebrouck | 2025/01/05 12:00 | Matteo Rocci v Szymon Kielan | 2-6,6-1,0-1 |
| ITF M25 Antalya Qual | 2024/11/24 07:00 | Szymon Kielan v Nikola Jovic | 4-6,4-6 |
| ITF M25 Antalya | 2024/11/19 07:00 | Radu David Turcanu v Szymon Kielan | 6-3,7-6 |
| ITF M25 Antalya | 2024/11/18 07:00 | Denis Constantin Spiridon v Szymon Kielan | 4-6,2-6 |